DS18B20 1Wire Digital Thermometer Temperature Sensor provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. In addition, the DS18B20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply.
Features/Specs of DS18B20 1Wire Digital Thermometer Temperature Sensor
● Reduce Component Count with Integrated Temperature Sensor and EEPROM
● Measures Temperatures from -55°C to +125°C (-67°F to +257°F)
● ±0.5°C Accuracy from -10°C to +85°C
● Programmable Resolution from 9 Bits to 12 Bits
● No External Components Required
● Parasitic Power Mode Requires Only 2 Pins for Operation (DQ and GND)
● Simplifies Distributed Temperature-Sensing Applications with Multidrop Capability
● Each Device Has a Unique 64-Bit Serial Code Stored in On-Board ROM
● Flexible User-Definable Nonvolatile (NV) Alarm Settings with Alarm Search Command Identifies Devices with Temperatures Outside Programmed Limits
● Supply Voltage: 3V to 5.5V
Note: Product Images are shown for illustrative purposes only and may differ from actual product
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